#pragma GCC optimize(2)
#include <iostream>
#include <queue>
#include <map>
#include <unordered_map>
#include <vector>
#include <algorithm>
#include <cmath>
#include <string>
#include <cstring>
#include <set>
#include <unordered_set>
#include <bitset>
#define IOS ios::sync_with_stdio(false), cin.tie(0), cout.tie(0)
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> pii;
int a[100]; 
int main()
{
	int t;
	cin>>t;
	while(t--)
	{
		int n;
		cin>>n;
		int sum=0;
		for(int i=1;i<=n;i++) cin>>a[i],sum+=a[i];
		
		if(sum%2==0) cout<<"YES"<<endl;
		else cout<<"NO"<<endl;
	}

	return 0;
}

